<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        .nav{
            height: 40px;
            border-bottom: 1px solid #ccc;
        }
        ul{
            list-style: none;
            width: 1200px;
            margin: 0 auto;
        }
        ul li{
            float: left;
            width: 20%;
            height: 40px;
           border-right: 1px solid #ccc;
           box-sizing: border-box;
           text-align: center;
           line-height: 40px;
        }
        ul .last{
            border-right: none;
        }
        ul li a{
            display: block;
            height: 40px;
            text-decoration: none;
            color: #000;

        }
    </style>
</head>
<body>
    <div class="nav">
        <ul>
            <li><a herf="#">我要投资</a></li>
            <li><a herf="#">平台介绍</a></li>
            <li><a herf="#">新手专区</a></li>
            <li><a herf="#" class="app">手机微金所</a></li>
            <li class="last"><a herf="#">个人中心</a></li>
        </ul>
    </div>
</body>
</html>